.menuList {
    width: 200px;
    height: 100vh;
    background-color: #393d49;
    color: #eee;
    font-size: 15px;
    font-family: "楷体";
    position: absolute;
    top:0
  }

  .title {
    height: 40px;
    line-height: 35px;
    /* text-algin缩进不一定是center时可以用text-indent */
    text-indent: 20px;
  }

  .title:hover {
    background-color: #2f4056;
  }

  .menu ul {
    background-color: #000;
  }

  .menu ul li {
    height: 30px;
    line-height: 35px;
    text-indent: 20px;
    cursor: pointer;
  }

  .menu ul li.active {
    background-color: #009688;
  }

  .title i {
    font-size: 15px;
    color: #eee;
    z-index: 999;
  }